unable to get ./heif-dec working in linux with decoder

[vonegameforce]

Hi all ,

Im trying to build heif libraries in linux locally .
I have built libde265 locally as well . After building Libde265 , i have used its include directory as well as library location to modify a cmake file in libheif (cmake/modules/FindLIBDE265.cmake) .
i have added

set(LIBDE265_LIBRARY "/home/Test/libheif-1.18.2/libde265-1.0.15/build/libde265/libde265.so")
set(LIBDE265_INCLUDE_DIR "/home/Test/libheif-1.18.2/libde265-1.0.15/")

Even after giving right path of the libde265 binary , i still am unable to decode the image .

./heif-dec sample1.heic
File contains 1 image
Could not decode image: 0: Error while loading plugin: No decoding plugin installed for this compression format

Any somebody please help in solving this ?

[silverbacknet]

Just to double check, but what does the cmake output say? Should be one of:

• Not compiling 'libde265' backend
• Compiling 'libde265' as built-in backend
• Compiling 'libde265' as dynamic plugin

Note that you must have WITH_LIBDE265 checked and WITH_LIBDE265_PLUGIN checked to get the plugin; if you uncheck WITH_LIBDE265 thinking you just want the plugin, it won't be built in at all.

[bradh]

If the cmake output looks OK, what does ./heif-dec -v show? Does that plugin path match your installation path for the decoder?

If that looks OK, what does ./heif-dec --list-decoders show?

[vonegameforce]

Hi all ,

i was able to solve this issue using a flag , specifically

-DENABLE_PLUGIN_LOADING=OFF

If im correct, earlier , plugin was linked dynamically , but the plugin path was missing .

[bradh]

Enabling or disabling an encoder looks completely unrelated to decoding. Possibly you made some other change like not using a plugin?

[vonegameforce]

Hi Bradh ,

sorry i pasted wrong flag , which i used to make the build right .
-DENABLE_PLUGIN_LOADING=OFF is the right flag . (i commented about plugin but pasted wrong , im very sorry about that).

with and without pluging flag ,,

With flag --

./heif-dec --list-decoders
HEIC decoders:

• libde265 = libde265 HEVC decoder, version 1.0.12
  VVIC decoders:
  AVIF decoders:
  JPEG decoders:
• jpeg = libjpeg-turbo 1.5.3 (libjpeg 6.2)
  JPEG 2000 decoders:
  HT-J2K decoders:
  uncompressed: yes

without flag --

./heif-dec --list-decoders
HEIC decoders:
VVIC decoders:
AVIF decoders:
JPEG decoders:
JPEG 2000 decoders:
HT-J2K decoders:
uncompressed: no

[vonegameforce]

./heif-dec -v
1.18.2
libheif: 1.18.2
plugin path: plugins are disabled

[vonegameforce]

./heif-dec -v
1.18.2
libheif: 1.18.2
plugin path: plugins are disabled

command i have used , to correct the above issue ::

cmake -DENABLE_PLUGIN_LOADING=NO --preset=release ..